Device for preventing film surface from being polluted by oil stains

Abstract

The utility model discloses a device for preventing film surface from being polluted by oil stain, which comprises a rack, a bearing assembly, a tensioning roller, a driving motor and an oil baffle assembly, the bearing assembly is fixed on the rack, the tensioning roller is connected with the bearing assembly, the device further comprises the oil baffle assembly, the tensioning roller comprises a tensioning roller body, a supporting part and a connecting shaft, one end of the supporting part is fixed with the tensioning roller body, and the other end of the supporting part is connected with the connecting shaft. The other end of the supporting part is fixed to the connecting shaft, the connecting shaft is connected with the driving motor, the supporting part is located between the rack and the tensioning roller body, and the supporting part is sleeved with the oil blocking assembly. The utility model can prevent lubricating oil from polluting the surface of the film.

Description

Technical Field

[0001] This utility model relates to film production equipment, specifically to a device for preventing oil stains from contaminating the surface of a film. Background Technology

[0002] Tensioning equipment is an essential piece of equipment in film production. Generally, tensioning equipment consists of a frame, bearing assembly, and tensioning roller. The bearing assembly consists of a bearing housing and a bearing installed in the bearing housing. Both ends of the tensioning roller are connected to the bearings. The bearing housing is fixed on the support frame, and one end of the tensioning roller is connected to the drive motor.

[0003] The bearing housing assembly bears the entire weight of the tension roller. With the tension roller typically rotating at speeds up to 600 revolutions per minute, the bearings easily overheat. Therefore, lubricating oil is usually added inside the bearings. As the tension roller rotates, the inner ring of the bearing rotates along with it. Although oil baffles and retaining rings are designed at both ends of the bearing, a small amount of lubricating oil will still slowly leak from the bearing housing assembly. This leaked lubricating oil is thrown onto the roller surface or adjacent rollers during the rotation of the tension roller, thus affecting the overall quality of the film.

[0004] In the film production process, the cleanliness of the film surface is a key factor. Since the spillage of lubricating oil increases the risk of film surface contamination, this is a problem that we urgently need to solve. Utility Model Content

[0005] This invention provides a device for preventing oil stains from contaminating the surface of a thin film. This invention can prevent lubricating oil from contaminating the surface of the thin film.

[0006] The technical solution to achieve the above objectives is as follows:

[0007] A device for preventing oil contamination of the film surface includes a frame, a bearing assembly, a tension roller, and a drive motor. The bearing assembly is fixed on the frame, and the tension roller is connected to the bearing assembly. The device also includes an oil-blocking assembly. The tension roller includes a tension roller body, a support portion, and a connecting shaft. One end of the support portion is fixed to the tension roller body, and the other end of the support portion is fixed to the connecting shaft. The connecting shaft is connected to the drive motor. The support portion is located between the frame and the tension roller body, and the oil-blocking assembly is fitted onto the support portion.

[0008] Furthermore, the outer diameter of the support is smaller than the outer diameter of the tension roller body, while the outer diameter of the support is larger than the outer diameter of the connecting shaft.

[0009] Furthermore, the oil baffle assembly includes a sleeve and an oil baffle component, with the sleeve fitted onto the support and the oil baffle component fixed to the sleeve.

[0010] Furthermore, the sleeve includes a first jacket, a second jacket, a first connecting plate, a second connecting plate, and fastening screws. The first jacket and the second jacket respectively cooperate with the support part. The first connecting plate is fixed to the first jacket, and the second connecting plate is fixed to the second jacket. After the first connecting plate and the second connecting plate are fastened by the fastening screws, the first jacket and the second jacket hug the support part.

[0011] Furthermore, at least a portion of the oil-blocking component is an adsorption layer that adsorbs oil stains.

[0012] Furthermore, the sleeve is loosely fitted onto the support portion, and the oil baffle assembly also includes a support rod and a retaining ring. One end of the support rod is fixed to the oil baffle component, and the other end of the support rod is fixed to the frame. The retaining ring is fitted onto the support portion and fixed to the support portion, and the retaining ring mates with the axial end face of the sleeve.

[0013] Furthermore, one end of the retaining ring is provided with a bent portion, and the sleeve is provided with an annular groove, with the bent portion and the annular groove having a clearance fit.

[0014] In this invention, when the lubricating oil in the bearing assembly is thrown out, it is blocked by the oil-blocking component, and then the adsorption layer adsorbs the lubricating oil. Since the amount of lubricating oil in the bearing assembly is limited, the amount of grease thrown out is also limited. The adsorption layer can completely adsorb the lubricating oil, thereby preventing the oil-blocking component from throwing out the grease when rotating with the tension roller. Therefore, this method can prevent the lubricating oil from contaminating the film surface. Attached Figure Description

[0015] Figure 1 This is a perspective view of the first device for preventing oil stains from contaminating the surface of a thin film.

[0016] Figure 2 This is a structural diagram of the first type of oil baffle assembly.

[0017] Figure 3 This is a cross-sectional view of the second type of device for preventing oil stains from contaminating the surface of a thin film.

[0018] Figure 4 This is a structural diagram of the second type of oil baffle assembly.

[0019] Frame 1, bearing assembly 2, tension roller 3, tension roller body 3a, support part 3b, connecting shaft 3c, drive motor 4, sleeve 5, first jacket 5a, second jacket 5b, first connecting plate 5c, second connecting plate 5d, fastening screw 5e, annular groove 5f, oil baffle 6, support rod 7, retaining ring 8, bending part 9, film A. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] like Figures 1 to 4 As shown, the device for preventing oil stains from contaminating the surface of a film according to this utility model includes a frame 1, a bearing assembly 2, a tension roller 3, and a drive motor 4. The bearing assembly 2 is fixed on the frame 1, and the tension roller 3 is connected to the bearing assembly 2.

[0025] It also includes an oil-blocking assembly. The tensioning roller 3 includes a tensioning roller body 3a, a support part 3b, and a connecting shaft 3c. The outer diameter of the support part 3b is smaller than the outer diameter of the tensioning roller body 3a, and the outer diameter of the support part 3b is larger than the outer diameter of the connecting shaft 3c. One end of the support part 3b is fixed to the tensioning roller body 3a, and the other end of the support part 3b is fixed to the connecting shaft 3c. The connecting shaft 3c is connected to a drive motor 4, which is preferably an electric motor. The support part 3b is located between the frame 1 and the tensioning roller body 3a, and the oil-blocking assembly is sleeved on the support part 3b.

[0026] The oil-blocking assembly includes a sleeve 5 and an oil-blocking component 6. The sleeve 5 is fitted onto the support portion 3b, and the oil-blocking component 6 is fixed to the sleeve 5. Figure 2 The sleeve 5 includes a first sleeve 5a, a second sleeve 5b, a first connecting plate 5c, a second connecting plate 5d, and a fastening screw 5e. The first sleeve 5a and the second sleeve 5b respectively cooperate with the support part 3b. The first connecting plate 5c is fixed to the first sleeve 5a, and the second connecting plate 5d is fixed to the second sleeve 5b. The first sleeve 5a and the second sleeve 5b are semi-circular. The first sleeve 5a and the second sleeve 5b cover the support part 3b. After the first connecting plate 5c and the second connecting plate 5d are fastened by the fastening screw 5e, the first sleeve 5a and the second sleeve 5b hug the support part 3b tightly.

[0027] In this invention, the oil-blocking component 6 is located between the bearing assembly 2 and the tension roller body 3a, and the oil-blocking component 6 is bowl-shaped. At least a portion of the oil-blocking component 6 is made of a material with adsorption properties. For example, the oil-blocking component 6 consists of a body made of plastic material and an adsorption layer made of sponge material. The body and the adsorption layer are bonded and fixed. When the lubricating oil in the bearing assembly 2 is thrown out, it is blocked by the oil-blocking component 6, and then adsorbed by the adsorption layer. Since the amount of lubricating oil in the bearing assembly 2 is limited, the amount of grease thrown out is also limited. The adsorption layer can completely adsorb the lubricating oil, thereby preventing the oil-blocking component from throwing out the grease when rotating with the tension roller 3. Therefore, this method can prevent the lubricating oil from contaminating the surface of the film A.

[0028] like Figure 3 and Figure 4 The sleeve 5 is loosely fitted onto the support part 3b. The oil baffle assembly also includes a support rod 7 and a retaining ring 8. One end of the support rod 7 is fixed to the oil baffle component 6, and the other end of the support rod 7 is fixed to the frame 1. The retaining ring 8 is fitted onto the support part 3b and fixed to the support part 3b. The retaining ring 8 mates with the axial end face of the sleeve 5. One end of the retaining ring 8 is provided with a bent portion 9, and the sleeve 5 is provided with an annular groove 5f. The bent portion 9 and the annular groove 5f are in clearance fit.

[0029] This method keeps the sleeve 5 and the oil-blocking component 6 stationary relative to the tension roller 3. Since the sleeve 5 is loosely fitted on the support part 3b and the oil-blocking component 6 is supported on the frame 1 by the support rod 7, the entire oil-blocking assembly is stationary relative to the tension roller 3 when the tension roller 3 rotates. When the lubricating oil in the bearing housing assembly is thrown off, it is intercepted by the oil-blocking component 6 and sticks to the surface of the oil-blocking component 6. Since the oil-blocking component 6 does not rotate, the lubricating oil cannot be transferred from the oil-blocking component 6 to the surface of the film A. Thus, this method can also avoid contamination of the surface of the film A.

[0030] Finally, it should be noted that the above-described embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions described in the foregoing embodiments; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the protection scope of the claims.

Claims

1. A device for preventing oil stains from contaminating the surface of a film, comprising a frame (1), a bearing assembly (2), a tension roller (3), and a drive motor (4), wherein the bearing assembly (2) is fixed on the frame (1), and the tension roller (3) is connected to the bearing assembly (2), characterized in that, It also includes an oil baffle assembly. The tensioning roller (3) includes a tensioning roller body (3a), a support part (3b), and a connecting shaft (3c). One end of the support part (3b) is fixed to the tensioning roller body (3a), and the other end of the support part (3b) is fixed to the connecting shaft (3c). The connecting shaft (3c) is connected to the drive motor (4). The support part (3b) is located between the frame (1) and the tensioning roller body (3a). The oil baffle assembly is sleeved on the support part (3b).

2. The device for preventing oil stains from contaminating the surface of a thin film according to claim 1, characterized in that, The outer diameter of the support part (3b) is smaller than the outer diameter of the tension roller body (3a), and the outer diameter of the support part (3b) is larger than the outer diameter of the connecting shaft (3c).

3. The device for preventing oil stains from contaminating the surface of a thin film according to claim 1, characterized in that, The oil baffle assembly includes a sleeve (5) and an oil baffle component (6). The sleeve (5) is fitted onto the support (3b), and the oil baffle component (6) is fixed to the sleeve (5).

4. The device for preventing oil stains from contaminating the surface of a thin film according to claim 3, characterized in that, The sleeve (5) includes a first sleeve (5a), a second sleeve (5b), a first connecting plate (5c), a second connecting plate (5d), and a fastening screw (5e). The first sleeve (5a) and the second sleeve (5b) respectively cooperate with the support part (3b). The first connecting plate (5c) is fixed to the first sleeve (5a), and the second connecting plate (5d) is fixed to the second sleeve (5b). After the first connecting plate (5c) and the second connecting plate (5d) are fastened by the fastening screw (5e), ​​the first sleeve (5a) and the second sleeve (5b) hug the support part (3b).

5. The device for preventing oil stains from contaminating the surface of a thin film according to claim 3, characterized in that, At least a portion of the oil-blocking component (6) is an adsorption layer that adsorbs oil stains.

6. The device for preventing oil stains from contaminating the surface of a thin film according to claim 2, characterized in that, The sleeve (5) is loosely fitted on the support part (3b). The oil baffle assembly also includes a support rod (7) and a retaining ring (8). One end of the support rod (7) is fixed to the oil baffle component (6), and the other end of the support rod (7) is fixed to the frame (1). The retaining ring (8) is fitted on the support part (3b) and fixed to the support part (3b). The retaining ring (8) is engaged with the axial end face of the sleeve (5).

7. The device for preventing oil stains from contaminating the surface of a thin film according to claim 6, characterized in that, One end of the retaining ring (8) is provided with a bent part (9), and the sleeve (5) is provided with an annular groove (5f), with the bent part (9) and the annular groove (5f) in clearance fit.

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